Rubymine: Code folding

Code folding is a very useful feature to me. It gives me a quick overview over a file and keeps me from scolling like a hamster in its wheel.

Keyboard shortcuts:

Collapse/expand current code block

strg -/+

Collapse/expand the whole file

strg ctrl -/+

When diving into Cucumber features or huge Ruby classes, I usually collapse all and the gradually expand what I need.